UEFA President Michel Platini on Tuesday urged Croatia and Serbia to tackle hooliganism ahead of next month's high-risk World Cup qualifier between the former foes.

In letters sent separately to Zoran Milanovic and Ivica Dacic, prime ministers of Croatia and Serbia respectively, Platini (pictured) also asked for an urgent meeting with European soccer's governing body officials over the issue.

"UEFA is extremely concerned by all forms of violence at certain matches played by Croatian clubs in UEFA competitions," Platini was quoted as saying in the letter to Milanovic, published on the Croatian Football Federation's official website.